You're confusing everything I'm saying. Let's just skip it.
On Sat, May 5, 2018, 7:00 PM Mark Pizzolato <Mark at infocomm.com> wrote:
Mark,
I?ve seen no evidence that anything has changed at all on Linux or other
operating systems. Changes have been made within simh to better support
some situations where bridges are used, but some sort of bridge setup needs
to be done like it did long ago.
Please point at specifics of what you are seeing that now allows telnet to
an emulator?s IP address without setting up some sort of bridging.
- Mark
*From:* owner-hecnet at Update.UU.SE [mailto:owner-hecnet at Update.UU.SE] *On
Behalf Of *Mark Abene
*Sent:* Saturday, May 5, 2018 3:57 PM
*To:* hecnet at update.uu.se
*Subject:* Re: [HECnet] Connections?
Nothing of the sort. I'm saying that in the past, you couldn't telnet to
an emulator's IP address from within the same host server. Naturally the
host server has multiple IPs for all the emulated guest OSes. This was a
well known and well documented peculiarity of BSD and Linux when logged
into a shell on the host server. It's no longer the case on more recent
Linux systems.
-Mark
On Sat, May 5, 2018, 10:56 AM Mark Pizzolato <Mark at infocomm.com> wrote:
Hi Mark,
I?m not understanding what you saying here.
Are you suggesting that on a single host system, you?ve got multiple
independent simulators running which all are using the same IP address as
the host system? And, if true these devices can then, not only uniquely
communicate with remote systems (on the Internet say), and also to each
other AND the host system?
- Mark
*From:* owner-hecnet at Update.UU.SE [mailto:owner-hecnet at Update.UU.SE] *On
Behalf Of *Mark Abene
*Sent:* Saturday, May 5, 2018 10:45 AM
*To:* hecnet at update.uu.se
*Subject:* Re: [HECnet] Connections?
This is an often misunderstood generalization, with some people able and
others not. I remember this being true on *BSD. You could not connect to a
simulated IP on the same host. It *used* to also be true on Linux, but is
no longer the case for some time. On my ubuntu server where I run dynamips,
simh, and klh10, all on bridged taps, I can telnet to all instances, even
locally.
-Mark
On Sat, May 5, 2018, 12:27 AM Johnny Billquist <bqt at softjar.se> wrote:
On 2018-05-05 03:39, Robert Armstrong wrote:
since once
Multinet grabs the interface, I can?t get to the underlying
host.
Actually I think it?s a limitation in simh and the pcap library ? the
simh guest OS can?t talk to the host OS on the same interface. You can
work around the problem with a TAP device. Check the archives for the
simh mailing list ? it?s been discussed many times before.
No. That is not correct. I run simh myself on a machine where I have
both the native host and simh talking on the same ethernet. And they are
both reachable by other hosts.
The OP must be doing something else funny.
Johnny
--
Johnny Billquist || "I'm on a bus
|| on a psychedelic trip
email: bqt at softjar.se || Reading murder books
pdp is alive! || tryin' to stay hip" - B. Idol